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CVE-2026-53321: linux kernel from 6.9 (inclusive), before 6.18.33 (exclusive), from 6.19 (inclusive), before 7.0.10 (exclusive), 7.1 ·…
CVE-2026-53321. CVSS 3.1 base score 5.5 (MEDIUM, NVD). EPSS 0.0016 (percentile 0.04797), scored 20-Oct-2026.
Affected technology
linux kernel · from 6.9 (inclusive), before 6.18.33 (exclusive)
linux
linux kernel · from 6.19 (inclusive), before 7.0.10 (exclusive)
linux
linux kernel · 7.1 · update rc1
linux
Linux · 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 to before 42785efe813e5a7d815f3b6be126e1bc0d12d2b6, 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 to before 39767f944a8c9e696566c37ad5b20131406c4b8d, 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 to before cb3af525f8dfb8930f0c123e5755fa967a12d5c1, 8d0c12a80cdeb80d5e0510e96d38fe551ed8e9b5 to before df8599ee18c0e5fe343ffe0b4c379636b8bb839a
Linux
Linux · 6.9
Linux
Component: Not specified by the source
File: io_uring/napi.c
Attack conditions (NVD, CVSS 3.1): Local · Low privileges required · No user interaction required
What an attacker can do
NVD’s CVSS 3.1 assessment (base score 5.5/10) rates confidentiality and integrity impact as none; availability impact as high. The description does not specify what an attacker can achieve beyond these rated impacts.
- CCR priority
- 22.0 /100 (P4)
- CVSS 3.1
- 5.5 /10 · CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · NVD
- EPSS
- 0.0016 · percentile 0.04797 · 2026-10-20
- KEV
- no
Provenance
- GitHub Advisory Database · Source record · observed 2026-10-21 16:14:50.830645+00:00 UTC
- NVD CVE API 2.0 · Source record · observed 2026-10-21 16:09:05.633125+00:00 UTC
Stable permalink: https://cybercodered.org/item/cve-cve-2026-53321.html